[GHC] #5299: ghc.exe: panic! (the 'impossible' happened)

[GHC]

#5299: ghc.exe: panic! (the 'impossible' happened)
---------------------------------+------------------------------------------
    Reporter:  guest             |       Owner:              
        Type:  bug               |      Status:  new         
    Priority:  normal            |   Component:  Compiler    
     Version:  7.0.3             |    Keywords:              
    Testcase:                    |   Blockedby:              
          Os:  Unknown/Multiple  |    Blocking:              
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
---------------------------------+------------------------------------------
 1. open ghci
 2. type in: [2,4..]
 3. obviously this is an infinite list, so press ctrl+C to stop it
 4. type in: take 20 [2,4..]
 5. ghci panics

 Full output attached.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5299>
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